Effect of crystalline orientations of gold substrate on the surface-enhanced Raman scattering of electrochemically deposited polypyrrole

Yu Chuan Liu, Li Yuan Jang

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The polypyrrole (PPy) films were electrochemically deposited on gold substrates with dominant crystalline orientations of (111) and (220), respectively. The results indicated the redox behavior and the corresponding complex occurring and forming, respectively, on the gold substrate in 0.1 M KCl in oxidation-reduction cycles (ORC) were strongly sensitive to the crystalline orientation of substrates. Moreover, the surface-enhanced Raman scattering (SERS) intensity of PPy deposited on gold with a dominant (111) orientation is three fold higher than that of PPy deposited on gold with a dominant (220) orientation.

Original languageEnglish
Pages (from-to)363-366
Number of pages4
JournalChemical Physics Letters
Volume349
Issue number5-6
DOIs
Publication statusPublished - Dec 7 2001
Externally publishedYes

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Spectroscopy
  • Atomic and Molecular Physics, and Optics

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